import java.util.Scanner;

/**
   Reads a string and prints out all vowels contained in that string.
   Vowels are A E I O U a e i o u. 

   Input: the value of s, a string
   Output: a string containing all the vowels in s,
      in the order in which they appear in s
*/
public class GetVowels
{
   public static void main(String[] args)
   {
      String r = "";
      
      Scanner in = new Scanner(System.in);
      String s = in.nextLine();

      char[] demo = s.toCharArray();
      String str = "AEIOUaeiou";
      char[] Vowels=str.toCharArray();
        for (int i = 0; i < demo.length; i++) {
           for (int j = 0; j < 10; j++){
            if (demo[i] == Vowels[j]) {
                System.out.print(demo[i]);
              }
            }
        }

      System.out.println(r);
   }
}